Changes between Version 66 and Version 67 of u/erica/RoeSolver
- Timestamp:
- 05/17/13 16:48:46 (12 years ago)
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u/erica/RoeSolver
v66 v67 143 143 }}} 144 144 145 The results for the method are the following equations for the wave-speeds:145 The derived expressions for the wave-speeds are as follows, 146 146 147 147 {{{#!Latex … … 165 165 }}} 166 166 167 a long with their corresponding expressions for the rho, u, v, w, H, and a (listed in Toro, eqn. 11.118) that we would plug into these wave speeds and the above expressions for the eigenvalues and eigenvectors. These in turn would be used in the numerical flux for the Godunov method.167 and the corresponding expressions for rho, u, v, w, H, and a that we would plug into these wave speeds and the above expressions for the eigenvalues and eigenvectors are listed in Toro, eqn. 11.118. These in turn would be used in the numerical flux for the Godunov method. 168 168 169 169 Note in the above formalism, the following definition is used, … … 180 180 = A Sample Algorithm = 181 181 182 1. Compute the averages (tilde expressions in Toro, eqn. 11.118) for the various quantities 183 2. Compute the eigenvalues, eigenvectors, and wave speeds as functions of these averages 184 3. Compute the numerical flux given above formula 185 182 186 = Short-comings of the Roe Solver = 183 187